Cody and his strider

I've been working on getting Cody to ride the bike for some time but he doesn't seem to possess the same natural ability like his brother nor have the desire to ride one. Since i don't know how to teach him to pedal, i  thought i'd try the new approach of the pedal-less bike.

So, i got him a strider bike. Took him maybe a couple of weeks before he was willing to "ride" it to the park. Since then we've been trying to take them to the park every evening to work on their biking and now he's able to cruise along at a reasonable speed. It's quite cool!  Cracks me up to see him do it. Shall have to remember to video it.

Here are some initial pictures of him and his strider.

He's cruising!!

Going round the lake with big brother, though he only does half the loop

The question is, how do i add the pedal on??!!